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    <title>山川异域，风月同天</title>
    <style>
    @font-face {
        font-family: 'SourceHanSans';
        font-display: swap;
        src: url('//at.alicdn.com/t/webfont_6n0r8v45dlj.eot'); /* IE9*/
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    body, html {
        display: block;
        margin: 0;
        padding: 0;
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        box-sizing: border-box;
        /* background: #d9dfec; */
        background: #ebecf0;
        overflow: hidden;
    }
    #con {
        margin: 0 auto;
    }
    #con * {
        text-align: center;
    }
    h1 {
        font-family: 'SourceHanSans';
        margin: 0.3em 0;
        font-size: 2.2em;
        color: #505050;
    }
    p {
        font-family: 'SourceHanSans';
        font-size: 1.2em;
        color: #505050;
    }
    #in {
        display: flex;
        justify-content: center;
    }
    button {
        font-family: 'SourceHanSans';
        padding: 20px 50px;
        margin: 0 15px;
        outline: 0;
        border: none;
        background: #ebecf0;
        color: #808080;
        text-shadow: 1px 1px 1px #fff;
        border-radius: 5em;
        font-size: 1.1em;
        line-height: 1.1em;
        cursor: pointer;
        transition: 0.2s ease-in-out;
        box-shadow: -5px -5px 20px #fff, 5px 5px 20px #baccc5;
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    button:hover {
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        box-shadow: 3px 3px 2px #baccc5 inset, -3px -3px 2px #fff inset;
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    <script>
        console.log("疫情当下，需要所有人的努力；携起手来，共克时艰！");
    </script>
</head>
<body>
    <div id="con">
        <h1>山川异域，风月同天</h1>
        <p style="margin-bottom: 40px;">世界加油</p>
        <div id="in"><button onclick="window.open('https:\/\/www.arcgis.com/apps/opsdashboard/index.html#/bda7594740fd40299423467b48e9ecf6')">实时疫情数据</button><button onclick="window.open('https:\/\/ncov.dxy.cn/ncovh5/view/pneumonia')">了解COVID-19</button></div>
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